Improved sash-fastener



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Letters Patent No. 93,274fdatcll A'ttgust, 1869.

MPROVED SASH-IEASTENER.4

The Schedule referred to in these Letters Patent and making part of thelame.

To all whom. yit may concern:

Be it known that I, DANIEL BULL, of Amboy, in the county of Lee, andState of Illinois, have invented a new and useful Improvement inSash-Fasteners; and I do hereby declare the following to he a full,clear, and exact description of the same, reference being had to theaccompanying drawings, and the letters and iigures marked thereon,whichv form a part of this specication, and in which` Figure 1represents a side elevation of my fastener, as applied tothe window;

Figure 2, a vertical sectional AView of the windowcasing, and stripshowing the notches in which' the fastener engages;

' Figure 3, a' side elevation of the fastener, detached from the window;

Figure 4, a view of the under side of said fastener;

Figure 5, an edge view of the fastener, looking at the side; and

Figure 6, an edge view, looking atfthe end of the fastener.

The nature of my invention consists in a vibrating bar or lever, in. asash-fastener; also, in a thumb-4 piece, in combination withsaid'vibrating bar.; and it further consists in the combination of thethumb-piece, plate, spring, and vibrating bar, constructed and arrangedas a window-fastener.

To enable those skilled in theart to understand how to manufacture anduse my invention, I will proceed to describe the same withparticular-ity.

The sam eletters of reference referto the corresponding parts in thedifferent lfigures.

In the annexed drawings- A vrepresents the window-sash;

B, the window-frame or casing; and

.0, the removable strip which holds the sash in place.

vD is a plate, which is secured to the-window-sah in any suitable way,as by the screws E.'

There is a post, F, attached to the under side of said plate on which athumb-piece, H, lis placed, it being held in place thereon by the springJ.

To one end'of the thumb-piece Hthere is a projection, K, attached, whichextends through the plate D far enough to be lnoved as hereafterdescribed, while the other end vof the piece H projects over thevibrating bar, or stop O.

The vibrating bar, or stop 0, is made with a slot in one side, at ornearits longitudinal centre, which fits on to the cross-piece I. f

This saves making a hole through the bar, and fitting a pin for it tovibrate on.

The bar, or stop O, is held in place, as well as vibrated, as hereafterdescribed, by the thumb-piece HZ There is a slight projection, S, oneither end of the bar, or stop O, which strikes against the plate R, to

prevent it from turning, so that the end will lnot proof the bar O, sothat it will press it against tl1e win. dow-casing, and cause it tospring into the notches Ti as the sash is raised sufficiently high.

The position the bar Oassumes is shown in fig. 5.

vVhen it is desired to lower the window-sash, the projection K is-inoveddown, and the thumb-piece H is thrown over the upper end of the bar, orstop O, and forces the upper end thereof against the window- Qca-sing,so that it projects into the notches U, and locks the window down.

If it is desired to move the window-sash up and Adown without fasteningor locking it, the projection K is moved to the centre of the opening orslot in the plate D, asshown infig. 1, which throws the end of thethumb-piece H over thecentre of the bar, or stop O, so that it holds itin ahorizontal position, as shownin ligs. 3 and 4, and neither end willproject to catch the notches'.

The spring over Athe thumb-'piece H allows it to give, so that the baror stopwill operate as above de# scribed.

The thumb-piece H may be made of spring-metal.

My window-fastener is simple, cheap, and durable. It also admits of theoperator using bot-h hands to raise the window-sash; for, when the4thumb-piece is -moved to the desired position, it remains there withoutbeing held.

Having fully described the construction and operation of my invention,

Vihat I claim, and desire to secure by Letters Patent, is-.- rf

1. The bar, or stop O, when so constructed and arranged in asashfasteuer,'that it vibrates upon its centre to projecteither endthereof, substantially as described, to lock the sash up or down, as maybe desired. A

2. The combination of the vibrating bar, or stop O,

and thumb-piece H, when so constructed and arranged that one end of thethumb-piece rests upon the bar,

-in y such a way that the bar or stop is vibrated by it Witnesses:

J. L. OOBURN, L. L. COBURN.

